mirror of
https://github.com/licsber/micropython.git
synced 2024-09-22 18:10:24 +08:00
7ea192af05
Changes in this commit: - Add the timeout and timeout_char keyword options. - Make uart.read() non-blocking. - Add uart.any(). - Add ioctl MP_STREAM_POLL handling. - Change uart.write() into non-busy waiting. uart.write() still waits until all data has been sent, but calls MICROPY_EVENT_POLL_HOOK while waiting. uart.write() uses DMA for transfer. One option would be to add a small local buffer, such that transfers up to the size of the buffer could be done without waiting. - As a side effect to the change of uart.write(), uart.txdone() and ioctl flush now report/wait correctly for the end of transmission. - Change machine_hard_uart_buf_t in machine_hard_uart_obj_t to an instance of that struct, rather than a pointer to one.
47 lines
1.8 KiB
C
47 lines
1.8 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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* Copyright (c) 2015 - 2018 Glenn Ruben Bakke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef UART_H__
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#define UART_H__
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#include "pin.h"
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#include "genhdr/pins.h"
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typedef struct _machine_hard_uart_obj_t machine_hard_uart_obj_t;
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extern const mp_obj_type_t machine_uart_type;
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void uart_init0(void);
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void uart_deinit(void);
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void uart_irq_handler(mp_uint_t uart_id);
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bool uart_rx_any(machine_hard_uart_obj_t *uart_obj);
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int uart_rx_char(machine_hard_uart_obj_t *uart_obj);
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void uart_tx_strn(machine_hard_uart_obj_t *uart_obj, const char *str, uint len);
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void uart_tx_strn_cooked(machine_hard_uart_obj_t *uart_obj, const char *str, uint len);
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#endif
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